Meaning

noun something left after other parts have been taken away

noun (often plural) a payment that is made to a performer or writer or director of a television show or commercial that is paid for every repeat showing

adjective relating to or indicating a remainder

originRecorded since 1570. From residue, itself borrowed during the Middle English period from Old French residu (Modern French résidu), from Latin residuum (“a remainder”), the neuter inflection of residuus (“remaining, left over”), perfect participle of resideō (“to remain behind”), from re- (“back, again”) + sedeō (“to sit, to reside”).

Etymology from Wiktionary, CC BY-SA 3.0